package com.zxc.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.zxc.common.constant.ProductConstant;
import com.zxc.common.to.SkuReductionTo;
import com.zxc.common.to.SkuStockTo;
import com.zxc.common.to.SpuBoundTo;
import com.zxc.common.to.es.SkuEsModel;
import com.zxc.common.utils.R;
import com.zxc.gulimall.product.entity.*;
import com.zxc.gulimall.product.feign.CouponFeignService;
import com.zxc.gulimall.product.feign.SearchFeignService;
import com.zxc.gulimall.product.feign.WareFeignService;
import com.zxc.gulimall.product.service.*;
import com.zxc.gulimall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zxc.common.utils.PageUtils;
import com.zxc.common.utils.Query;

import com.zxc.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    private SpuImagesService spuImagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService productAttrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private CouponFeignService couponFeignService;

    @Autowired
    private WareFeignService wareFeignService;

    @Autowired
    private SearchFeignService searchFeignService;

    //商品上架
    @Transactional
    @Override
    public void up(Long spuId) {

        //组装需要的数据
        List<SkuEsModel> upProducts = new ArrayList<>();

        //2、查出当前spuId对应的所有的sku信息，品牌的名字
        List<SkuInfoEntity> skuInfoEntityList = skuInfoService.getSkusBySpuId(spuId);

        //需要查询库存的所有商品的id
        List<Long> skuIds = skuInfoEntityList.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());


        //查询当前sku的所有可以被用来检索的规格属性 pms_product_attr_value 里面 spu_id 一致的数据
        List<ProductAttrValueEntity> productAttrValueEntityList = productAttrValueService.baseAttrListForSpuId(spuId);

        List<Long> attrIds = productAttrValueEntityList.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        //找出属性中searchType为1的数据
        List<Long> searchAttrIds = attrService.selectSearchAttrs(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrIds);
        //需要保存的数据，根据我们上面查出的可以作为被查询的属性的id，把productAttrValueEntityList的数据过滤出来
        List<SkuEsModel.Attrs> attrs = productAttrValueEntityList.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attr = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attr);
            return attr;
        }).collect(Collectors.toList());

        //hasStock TODO 远程调用查看是否还有库存
        Map<Long,Boolean> stockMap = null;
        try {
            R r = wareFeignService.hasStock(skuIds);
            //
            TypeReference<List<SkuStockTo>> typeReference = new TypeReference<List<SkuStockTo>>(){};
            stockMap = r.getData(typeReference).stream().collect(Collectors.toMap(SkuStockTo::getSkuId, SkuStockTo::getHasStock));
        }catch (Exception e){
            log.error("库存服务异常：原因{}",e);
        }

        //3、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> collect = skuInfoEntityList.stream().map(skuInfoEntity -> {
            //1、组装需要的数据
            SkuEsModel skuEsModel = new SkuEsModel();
            //属性对拷
            BeanUtils.copyProperties(skuInfoEntity, skuEsModel);
            //skuPrice
            skuEsModel.setSkuPrice(skuInfoEntity.getPrice());
            //skuDefaultImg
            skuEsModel.setSkuImg(skuInfoEntity.getSkuDefaultImg());
            //设置库存信息
            if (finalStockMap == null){
                //没有库存信息默认设置为有库存true
                skuEsModel.setHasStock(true);
            }else {
                skuEsModel.setHasStock(finalStockMap.get(skuInfoEntity.getBrandId()));
            }

            skuEsModel.setHasStock(true);
            //hotScore  TODO 热度评分！！！
            skuEsModel.setHotScore(0L);
            //brandName brandImg
            BrandEntity brandEntity = brandService.getById(skuEsModel.getBrandId());
            skuEsModel.setBrandName(brandEntity.getName());
            skuEsModel.setBrandImg(brandEntity.getLogo());
            //catalogName
            CategoryEntity categoryEntity = categoryService.getById(skuEsModel.getCatalogId());
            skuEsModel.setCatalogName(categoryEntity.getName());

            //public static class Attrs 设置检索属性
            skuEsModel.setAttrs(attrs);
            return skuEsModel;
        }).collect(Collectors.toList());

        //TODO 数据发送给es进行保存
        R r = searchFeignService.productStatusUp(collect);
        if (r.getCode() == 0){
            //远程调用成功 ,需要修改当前spu的状态为上架
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.UP_SPU.getCode());
        }else {
            //远程调用失败
            //TODO 重复调用？接口幂等性 重试机制。。。
        }

    }

    /**
     * 根据skuId查询spu的信息
     * @param skuId
     * @return
     */
    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {

        //先查询sku表里的数据
        SkuInfoEntity skuInfoEntity = skuInfoService.getById(skuId);

        //获得spuId
        Long spuId = skuInfoEntity.getSpuId();

        //再通过spuId查询spuInfo信息表里的数据
        SpuInfoEntity spuInfoEntity = this.baseMapper.selectById(spuId);

        //查询品牌表的数据获取品牌名
        BrandEntity brandEntity = brandService.getById(spuInfoEntity.getBrandId());
        //spuInfoEntity.setBrandName(brandEntity.getName());
        spuInfoEntity.setBrandId(brandEntity.getBrandId());

        return spuInfoEntity;
    }

   // @GlobalTransactional
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1、保存spu基本信息：pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);

        //2、保存spu的描述图片：pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);

        //3、保存spu的图片集：pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(),images);

        //4、保存spu的规格参数：pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());

            //查询attr属性名
            AttrEntity byId = attrService.getById(attr.getAttrId());

            valueEntity.setAttrName(byId.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(spuInfoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);


        //5、保存spu的积分信息：gulimall_sms--->sms_spu_bounds（积分信息coupons）
          Bounds bounds = vo.getBounds();
          SpuBoundTo spuBoundTo = new SpuBoundTo();
          BeanUtils.copyProperties(bounds, spuBoundTo);
          spuBoundTo.setSpuId(spuInfoEntity.getId());
          R r = couponFeignService.saveSpuBounds(spuBoundTo);
          if (r.getCode() != 0){
            log.error("远程保存spu积分信息失败！");
          }


        //5、保存当前spu对应的所有sku信息：pms_sku_info
        //5、1）、sku的基本信息:pms_sku_info
        List<Skus> skus = vo.getSkus();
        if(skus!=null && skus.size()>0){
            skus.forEach(item->{
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if(image.getDefaultImg() == 1){
                        defaultImg = image.getImgUrl();
                    }
                }

                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    //返回true就是需要，false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());

                //5、2）、sku的图片信息：pms_sku_images
                skuImagesService.saveBatch(imagesEntities);

                //TODO 没有图片路径的无需保存

                //5、3）、sku的销售属性：pms_sku_sale_attr_value
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());

                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                //5、4）、sku的优惠、满减等信息：gulimall_sms--->sms_sku_ladder、sms_sku_full_reduction、sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if(skuReductionTo.getFullCount() <= 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) ==1 ){

                }
                R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                if (r1.getCode() != 0){
                    log.error("远程保存sku优惠信息失败！");
                }
            });
        }
    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> queryWrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            queryWrapper.and((wrapper) -> {
                wrapper.eq("id",key).or().like("spu_name",key);
            });
        }

        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            queryWrapper.eq("publish_status",status);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            queryWrapper.eq("brand_id",brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            queryWrapper.eq("catalog_id",catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params), queryWrapper);

        return new PageUtils(page);
    }
}